Featuring SiRF star III technology for extra sensitive reception outdoors, indoors and through metal. WAAS enabled receiver providing GPS signal corrections, giving better position accuracy. How much better? Try an average of up to five times better. A WAAS-capable receiver can give you a position accuracy of better than three meters 95 percent of the time.

WorldTracker GPRS provides real-time navigation in urban canyons as well as high sensitivity acquisition needed for indoor use.

Extended Life "Hibernator" Battery Case This popular WorldTracker GPS Tracking Device has been combined with a brand new weatherproof magnetic enclosure. This new pack can provide up to 90 days of unattended use by utilizing dual layers of state-of-the-art Lithium Ion Batteries and a motion sensor, which puts the tracker into hibernation after 5 minutes of inactivity. A mere 5.43 inches long, the new battery pack is about half the size of its conventional counterparts when housed in its waterproof and crush-proof Pelican™ case.

• Self contained device fits in the palm of your hand. No external antennae needed, just plug-&-play.

• Location information is reported using a direct GPRS data connection.

• Mapping for the entire world using the latest cutting edge 3D maps from Google and Microsoft.

• Real-time location reports every 15 seconds.

• Geofence feature sends alert if the target moves from pre-defined area.

• Parking and Anti-theft Function: Pressing the Parking Button will start the anti-theft function. If your vehicle has been moved 100 meters the WorldTracker will send messages to the pre-set phone numbers to warn you of the vehicle movement.

• GPS assist function using GSM network, boosting location sensitivity when GPS signal is temporarily lost.

• Durable, lightweight, water-resistant housing.

• Enhanced sensitivity for indoor and outdoor reporting.

• Tri-band GSM 850/1800/1900 MHz for worldwide coverage.

• 12 volt DC adapter connects to vehicle power.

• Can be hooked up to 12 volt DC for permanent hardwire connection

Reviews:

"The WorldTracker GPRS is one of the most accurate tracking devices I've ever tested. The unit uses the same high-performance GPS receiver found in many automotive GPS models, SiRF's 20-channel StarIII receiver. Accurate to within about 15 feet, the WorldTracker GPRS uses Assisted-GPS, or AGPS to report its location every 15 seconds.

Location reports are accessed via a webpage, and position information is spectacularly displayed using Google's or Microsoft's 3D maps. Date, time, speed, heading, and street address information is displayed on the map, and breadcrumb trails show the path the WorldTracker has taken. Customers can choose to view the device's location either on a Google map, Microsoft's Virtual Earth, or a special webpage that's optimized for viewing on a PDA or smartphone (such as a Blackberry).

An on-screen calendar makes it easy to view historical tracking data by clicking on the desired date (any dates with tracking data available are clickable). Various driving-specific reports are only available, including daily and monthly mileage, time spent driving, and maximum speed reached for each trip.

WorldTracker's use of SiRF's high performance GPS receiver, Assisted-GPS for enhanced positioning indoors where GPS signals cannot penetrate, and Microsoft's Virtual Earth and/or Google Earth is a powerful combination that left me awestruck at the devices accuracy, ease of use, and reporting capabilities.

Geofences, or virtual boundaries, can be drawn on the map and WorldTracker will alert you via email if the virtual boundary is crossed. For example, you could leave the WorldTracker in a parked car and setup a Geofence to automatically send an alert if the vehicle moves. Or you might setup a Geofence around your home address and receive notification when the WorldTracker enters or leaves that address.

The WorldTracker GPRS' achilles heal is its short battery life. Trading battery life for GPS performance, my WorldTracker GPRS only got about 8 hours of use per full charge, seriously limiting the practical uses for the device. A slightly thicker battery pack can be purchased for about $200 that doubles the battery life, but even then you won't get a full 24-hours of use between charges. Those looking to use WorldTracker GPRS for vehicle tracking will want to consider the optional magnetic vehicle mount that leverages a motion sensor and larger battery pack to achieve between 30 and 90 days of battery life (after 5 minutes of inactivity, the case's motion sensor automatically shuts down the GPS, saving battery life)."